Method of coating asbestos cloth with rubber



April 21, 1925. 1 534377 E. c. MESH METHOD OF COATING ASBESTOS CLOTH WITH RUBBER Filed Nov. 24 1920 EdvQ/h CZ W/ese lnvenfor' fibres, those having easily shi-eiidmliih Patented Ayn". m, was.

rnnIGNOZl. BY MESNE ASSIGNMENTS,

T THE FLSK RUBBER, COMPANY. OF CHICOPEE FALLS. MASSACHUSETTS, A COE- FOBATIUM (Ill? "MASSACHUSETTS.

lvlETib-IOIE 01h QMlJlTIlilbi ASBESTOS CLOTH WITH RUBBER.

ll pyillcation filed November 24, 1920. ficriai No. 4265250.

2' '0 cZZ whom may concern:

Be it known that l, EDWIN (l. l l 'nssn, a citizen of the United States, and a resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful improvements in the Method 01" Coating Asbestos Cloth with Rubber, of which the following a specilication.

0 This invention relates to coating fabric With rubber and the principal object of the invention is to coat with rubber in a more satisfactory manner fabrics whim: are difficult to coat such tllOi having short and those having loosely "ixllli fibres. i is desirable from the SlJHIHlimlIll. olf s1. :o. and uniformity to coat such labisics on a calender such as is ordil'iarily used fur coat- 0 ing the usual fabrics but in using such a calender it has been found that the adhesion oi? the rubber to the fibres on the surface of such fabric is greater than the adhesion of these fibres to the body of thetabric. In

2 consequence of this the rubber will follow around the calender roll and carry with it the surtacc fibres of such fabric Whereas the rubber should separate from the calender roll and be carried away adhering to the so fabric... I

:l have found that by coatii'ig the fabric with adhesive the fabric is compacted and given. sullicicntfirmness to withstand the pulling action of the rubber.

The single figure of the drawing is a diagrammatic section of a fabric treated acmrding to my invention. I

c In practicing my invention I preferably use as the adhesive a. rubber cement- 1 of a0 the usual kind and apply this cement to the fabric 2 by means of a spreader of the usual type. After "the fabric has become in|pregnoted to a greater or less degree depending on the character of the fabric with the adhesive it is preferably completely dried either by forced evaporation of the solvent in the adhesive or by evaporation by ex posure or in any other manner which may be suitable for the particular adhesive applied. In certain cases it may not be necessary to completely evaporate the solvent.

After drying, or partially drying, the fab ric is ready for coating and this is prefer ably done in the usual calender. It will be understood that the fabric having once been treated with the adhesive may be coated with one or morocoatings of rubber Without further application of adhesiv the lulu-lion of the adlu f heir slated to render fab manipulation in the cal' coating may be either a s tic-n coat but my invei'iton is o utility when the first coat to he a friction coat. Such further l s may he applied as may be found dc: iblc. For cxaniplc the first coat may be o. shim coat 3 on one side of the. fabric and the SQCUXitl coat 4 a friction coat on the revel side and the third coat 5 a shim coat on side or the first coat rosy be a friction coat and the second coat a friction mat on the reverse side and the third Cl a shim coat or the first on either side (as at or coat may be a friction coat and the only other coat may be a shim. coat on the reverse side. The above arrangement of skim and friction coatings is by Way of suggestion only and either form or coating may be in terchangeably employed, as desired.

It will be understood llll'r a by friction coat I mean a coating of rubber applied to the fabric by a. roller which is moving; at a suri'me ecdislightly greater than that of the fabric so as to thoroughly work the rubber into the lihres of the fabric and that by a slcini coat I mean coating of rubber applied to the fabric by a roller moving at the same surface speed as the fabric so as to merely lay the rubber on the fabric.

It will be understood that the above do scription is for the purpose of illustration only and that my invention is not limited thereby.

I claim:

1'. The method of coating short staple fabric with rubber which comprises, applying a rubber cement, at least artially setting the cement and then app ying a coating of rubber.

2. The method of coating short staple fabric with rubber which comprises, apple -s reverse ing a rubber cement, at least partially set tmg the cement and then frlctumm a mating of rubber into the fabric.

The method of coating HSlJ(ff-tOS ClOt-ll with rubber which comprlses applymg a rubber cement, at least purtlally setting the cement and then applying a. coatin ber.

.1. The method of ("hating 5.4mm; clot 

